Home / 106,344.20-146,765.33-79,439.97

Finding the Fourth Proportional to 106,344.20, 146,765.33 and 79,439.97

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Solution

The fourth proportional to 106,344.20, 146,765.33 and 79,439.97 is: 109,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,344.20 : 146,765.33 = 79,439.97 : x
  2. Step 2: Convert to fraction form
    106,344.20/146,765.33 = 79,439.97/x
  3. Step 3: Cross multiply
    106,344.20x = 146,765.33 × 79,439.97
  4. Step 4: Simplify right side
    106,344.20x = 11,659,033,015.04
  5. Step 5: Solve for x
    x = 11,659,033,015.04/106,344.20
  6. Step 6: Final answer
    x = 109,634.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.